Energy sources – our fuel mix
Find out which energy sources we use to produce our gas and electricity – our fuel mix - and where the UK’s energy comes from.
Where your electricity comes from
The mix of fuels we use to generate the electricity supplied to customers - along with their environmental impact - is known as the Fuel Mix Disclosure and we publish it in October every year.
| Energy source | British Gas average | UK Average |
|---|---|---|
| Renewables | 20% | 43% |
| Nuclear | 57% | 13% |
| Coal | 4% | 6% |
| Natural gas | 17% | 35% |
| Other fuels | 2% | 3% |
| CO2 emissions | 117 g/kWh | 222 g/kWh |
| High-level radioactive waste | 0.0034 g/kWh | 0.0008 g/kWh |
Fuel Mix of our electricity tariffs
The table below shows the fuel mix if you are on a tariff with matched renewable electricity (including our green tariffs and Green Future tariffs). If you did not choose a tariff with matched renewable electricity, the fuel mix for 'Our other tariffs' applies to you.
| Energy Source | 100% renewable tariffs | Our other tariffs |
|---|---|---|
| Renewables | 100% | 1% |
| Nuclear | 0% | 63% |
| Coal | 0% | 6% |
| Natural gas | 0% | 28% |
| Other fuels | 0% | 2% |
| CO2 emissions | 0 g/kWh | 191 g/kWh |
| High-level radioactive waste | 0 g/kWh | 0.0038 g/kWh |
British Gas tariffs. Join British Gas today
With British Gas you’re in safe hands, we power over 8 million homes and businesses in Britain. You can see what tariffs we have available online.
Where does the UK’s energy come from?
The UK’s single largest source of natural gas comes via pipelines and interconnectors from the UK Continental Shelf and most imports come from reliable suppliers such as Norway.
You can find more information about the UK’s natural gas imports and exports here.
How the electricity gets to your door
Electricity is generated in a variety of ways such as burning coal or using gas and wind turbines. It’s fed directly into the National Grid, and then through the transmission and distribution network to your home. Our video tells you how energy gets into your home in less than a minute.
It isn’t possible to trace the electricity generated from a particular renewable source right through to each individual customer - it all gets mixed up in the grid. However, for some tariffs, suppliers will own or purchase certificates, such as Renewable Energy Guarantees of Origin (REGO) to show that the amount electricity used by customers on their tariffs has been sourced from renewable sources and fed into the National Grid.
Want to know more?
Renewable energy
By investing in wind farms, solar and green gas, we’re helping customers reduce their home’s CO2 emissions.
Energy saving tips
Reduce your bill and your carbon footprint – try our energy saving tips.
Off-peak electricity explained
Using off-peak electricity could help discount your bills while making energy more sustainable.